# Thevenin vs Voltios

The clearest difference is price: Thevenin at Free against Voltios's $0.99. Thevenin also leads on update cadence (every 3 days vs every 2 weeks) and ratings volume (11 vs 2). Voltios's advantage is rating (5.0 vs 4.3) and chart position (#166 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Thevenin is free to download; Voltios costs $0.99 up front. Thevenin sells 2 in-app purchases, starting at $4.99 per month and Voltios sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Voltios holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Thevenin has 11 ratings behind it against 2, so its average is the more settled of the two.

Thevenin ships an update every 3 days, Voltios every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Thevenin | Voltios |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.3 (11 ratings)](https://appshunter.io/ios/app/thevenin-ai-stem-solver/id6759879628/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/voltios-circuit-puzzles/id6779986359/reviews)** |
| Number of ratings | **11** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 2 weeks |
| Monetization | **Freemium** | Paid |
| Best chart rank | — | **#166** |
| Size | 43 MB | 6 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Thafier Mahmood](https://appshunter.io/developer/1698380406) | [Ignacio Noguerol Sicilia](https://appshunter.io/developer/6779954213) |

## What reviewers say

### Thevenin

[App page](https://appshunter.io/ios/app/thevenin-ai-stem-solver/id6759879628)

Instantly solve and understand electrical circuits with AI. Scan diagrams from textbooks or notes to get step-by-step solutions for DC/AC circuits, equivalents, and more. Designed for engineering students to grasp concepts and prepare for exams.

**Highlights:** Instant circuit scanning, Step-by-step solution breakdown, Support for DC/AC circuits, Thevenin/Norton equivalents, Nodal and mesh analysis, Op-amp and BJT analysis, High-accuracy component detection

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $4.99 | per month |
| Pro | $29.99 | per year |


### Voltios

[App page](https://appshunter.io/ios/app/voltios-circuit-puzzles/id6779986359)

**Currently charting:** #166 Top Paid · Education (US App Store)

A puzzle game that teaches the fundamentals of electricity through interactive circuit building. Explore various electrical concepts like switches, short circuits, and Ohm's law in a visually engaging and playful manner. Designed for families with no ads or tracking, offering a complete learning experience with a single purchase.

**Highlights:** Interactive circuit building, Learn electrical concepts visually, Explore switches, fuses, and Ohm's law, 68 levels across 9 worlds, Offline play, No ads or tracking

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Game | $4.99 | one-time |


## Frequently asked questions

### Is Thevenin free?

Thevenin is free to download, with in-app purchases available.

### Is Voltios free?

Voltios costs $0.99, and also offers in-app purchases.

### Which has better reviews, Thevenin or Voltios?

Voltios is rated higher. Thevenin averages 4.3 out of 5 from 11 ratings, while Voltios averages 5.0 from 2 ratings.

### Do Thevenin or Voltios have ads?

Neither Thevenin nor Voltios shows ads.

### Which is updated more often, Thevenin or Voltios?

Thevenin ships an update every 3 days, and Voltios every 2 weeks. Most recently, Thevenin was updated on October 24, 2026 and Voltios on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*